docs: def get_xray_daemon():
      """Parse X-Ray Daemon address environment variable.
  
      If the environment variable is not set, raise an exception to signal that
      we're unable to send data to X-Ray.
      """
      env_value = os.environ.get('AWS_XRAY_DAEMON_ADDRESS')
      if env_value is None:
          raise XRayDaemonNotFoundError()
  
      xray_ip, xray_port = env_value.split(':')
      return XRayDaemon(ip_address=xray_ip, port=int(xray_port))